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• 5467-74-3 4-Bromophenylboronic acid 
• 90-90-4 (4-bromophenyl)(phenyl)methanone 

Relevant academic research and scientific papers

Stereochemically Dependent Synthesis of Two Cu(I) Cluster-Based Coordination Polymers with Thermochromic Luminescence

Two Cu(I) cluster based coordination polymers, [CuI(cis-bpype)]·CH3CN (1) and [Cu4I4(cis-bpype)3(trans-bpype)]·3DMF (2), have been synthesized from cis- and trans-1,2-bis(4-(pyridin-2-yl)phenyl)ethane (cis- and

Identification of the donor-substitution effect of tetraphenylethylene AIEgen: Synthesis, photophysical property analysis, and bioimaging applications

Various aggregation-induced emission luminogen (AIEgen) derivatives based on TPE (tetraphenylethylene) containing the electron-donating moiety (–NMe2, –OMe) and bromine (–Br) moiety were prepared, which are key intermediates for tuning the emis

Configuration-controllable synthesis ofZ/Eisomers based ono-carborane-functionalized tetraphenylethene

Z/Eisomerism is a very important and interesting phenomenon in the field of chemistry. In many cases, people ignore the difference betweenZ/Eisomers, and most studies investigate this hybrid system, thereby limiting the precise and in-depth understanding of the structure-performance relationship of materials. At present, only a fewZ/Eisomers of TPE derivatives can be separated, and the synthesis and separation of isomers modified by carborane substituents have not been reported. In this work, twoZ/Eisomers, namely,Z-TPE-2CarandE-TPE-2Car, with clear configuration were synthesized using an effective route. Both compounds have strong aggregation-induced luminescence (AIE) activity. The solid-state emission peaks ofZ-TPE-2CarandE-TPE-2Carare 528 and 533 nm, respectively, and the emission peaks are shifted by 5 nm. The introduction of phenyl carborane substituents makes the two isomers have high solid-state fluorescence quantum yields, reaching 99% and 90%, respectively.

Aggregation-induced emission-active hyperbranched polymers conjugated with tetraphenylethylene for nitroaromatic explosive detection

This work develops a facile synthesis for aggregation-induced emission (AIE)-active hyperbranched polyglycidols (HPGs) to design a solid-state sensor for detecting nitroaromatic explosives. The tetraphenylethylene moieties were conjugated onto the periphery of the HPGs in a single step using dynamic boronate ester cross-linkers. The resulting AIE-active HPGs exhibited excellent AIE characteristics in tetrahydrofuran (THF)/H2O mixtures, emitting a strong blue fluorescence under UV irradiation. Dynamic light scattering and transmission electron microscopic analyses demonstrated that the self-assembled nanosized aggregates were stable in the THF/H2O mixture. The fluorescence of the aggregates was dramatically quenched by various nitro compounds, including 2,4,6-trinitrophenol (or picric acid; PA), 2,6-dinitrophenol, 4-nitrophenol, 4-nitrotoluene, and nitromethane. The nano-aggregates exhibited extraordinary sensitivity towards PA, with a Stern?Volmer constant (Ksv) of 2.27 × 104 M?1 and a limit of detection of 40 ppb. Paper strips encapsulating the aggregates exhibited a vivid visual quenching, promising the practical applicability of these polymers as solid-state sensors for the detection of nitroaromatic explosives.

Synthesis and photophysical properties of tetraphenylethylene derivatives as luminescent downshifting materials for organic photovoltaic applications

Luminescent Down-Shifting (LDS) is an optical approach applied in several photovoltaic (PV) technologies in which high energy solar radiation is converted to a wavelength region where the response of the photovoltaic devices is better. The use of LDS laye

Direct observation of intramolecular coplanarity regulated polymorph emission of a tetraphenylethene derivative

Polymorphism makes it possible to clarify the relationship between emission property and crystal structure. However, based on the exact molecular conformation in tetraphenylethene polymorphisms, it is still challenging to evaluate the difference of intramolecular coplanarity without the support of calculation because of the complex combination of four different torsion angles between four peripheral benzenes and the central ethylene plane. Here, by using a di-formyl-functionalized tetraphenylethene derivative, two ideal polymorphisms with a consistent trend of the corresponding torsion angles have been obtained. For the first time, we explicitly demonstrated that intramolecular coplanarity is the underlying cause of the polymorphism-dependent emission of tetraphenylethene derivatives.

Enhancing Selectivity and Kinetics in Oxidative Photocyclization by Supramolecular Control

Photochemical reactions typically proceed via multiple reaction pathways, yielding a variety of isomers and products. Enhancing the selectivity is challenging. Now, the potential of supramolecular control for oxidative photocyclization of a tetraarylethyl

Mitochondria-targeted aggregation induced emission theranostics: Crucial importance of: In situ activation

Tissue selective targeting and specific suborganellular localization combined with an efficient pathology associated enzymatic activation of drugs in drug delivery systems may exhibit a clear advantage over conventional cancer treatment. Here, a mitochond

Light-emitting conjugated polymers with microporous network architecture: Interweaving scaffold promotes electronic conjugation, facilitates exciton migration, and improves luminescence

Herein we report a strategy for the design of highly luminescent conjugated polymers by restricting rotation of the polymer building blocks through a microporous network architecture. We demonstrate this concept using tetraphenylethene (TPE) as a building

Control of luminescence in conjugated polymers through control of chain microstructure

The development of semiconducting polymers with high solid-state luminescence efficiencies has enabled the fabrication of efficient polymer light-emitting diodes. Luminescence is often quenched in well-ordered molecular solids, as a result of inter-molecu